<template>
    <transition name="drop">
        <div class="top-tip" v-show="showFlag" @click.stop="hide">
            <slot></slot>
        </div>
    </transition>
</template>

<script>
export default {
    props : {
        delay : {
            type : Number,
            default : 0
        }
    },
    data () {
        return {
            showFlag : false
        }
    },
    methods : {
        show () {
            this.showFlag = true
            clearTimeout(this.timer)
            this.timer = setTimeout(() => {
                this.hide()
            }, this.delay)
        },
        hide () {
            this.showFlag = false
        }
    }
}
</script>

<style scoped lang="stylus">
@import "~common/stylus/variable"

.top-tip
    position: fixed
    top: 0
    width: 100%
    z-index: 500
    background: $color-dialog-background
    &.drop-enter-active, &.drop-leave-active
        transition: all 0.3s
    &.drop-enter, &.drop-leave-to
        transform: translate3d(0, -100%, 0)
</style>
